How many photovoltaic cells does it take to power a cell phone?

3
6
9
12

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Will possibly give brainliest and a high rating. choose the linear inequality that describes the graph. the gray area represents the shaded region. 4x + y > 4 4x – y ≥ 4 4x + y < 4 4x + y ≥ 4

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i